java通讯录
1.实现效果
2.首先写一个文件读写类
package tongxunlu;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class FileRW {
//进行文件读写操作
private static FileWriter fileWriter;
private static FileReader fileReader;
//字符读写缓冲流
private static BufferedReader bf;
private static BufferedWriter bw;
private static File file = new File("message\\test.txt");
//文件写操作
public static void fileWrite(String s) {
try {
fileWriter = new FileWriter(file, true);
bw = new BufferedWriter(fileWriter);
bw.write(s);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally {
try {
bw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
//文件读操作
public static String fileRead(String k) {
try {
fileReader = new FileReader(file);
bf = new BufferedReader(fileReader);
String ss;
while ( (ss = bf.readLine() )!= null ) {
String[] temp = ss.split(",");
if(temp[0].equals(k)) {
return ss;
}
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
bf.close();
fileReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return null;
}
}
3.实现界面以及界面和文件交互
package tongxunlu;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.TextField;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class Main extends JFrame {
String[] texts = new String[5];
JPanel jp = new JPanel();
JLabel message = new JLabel("个人通讯录", JLabel.CENTER);
private JTextField jt1 = new JTextField("", 15);
private JLabel jl1 = new JLabel("姓名");
private JLabel jl2 = new JLabel("邮政编码");
private JTextField jt2 = new JTextField("", 15);
private JLabel jl3 = new JLabel("通信地址");
private JTextField jt3 = new JTextField("", 45);
private JLabel jl4 = new JLabel("手机");
private JTextField jt4 = new JTextField("", 30);
private JLabel jl5 = new JLabel("email");
private JTextField jt5 = new JTextField("", 45);
private JButton add = new JButton("添加");
private JButton find = new JButton("查找");
private JButton clear = new JButton("清空");
private JButton quit = new JButton("退出");
public Main() {
super("通讯录");
setLayout(null);
setLocation(400, 200);
setSize(600, 500);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
setResizable(false);
message.setForeground(Color.BLUE);
message.setFont(new Font("黑体",1,30));
message.setBounds(200, 20, 200, 30);
this.add(message);
jl1.setBounds(90, 56, 100, 30);
jt1.setBounds(150, 56, 100, 30);
this.add(jl1);
this.add(jt1);
jl2.setBounds(90, 106, 100, 30);
jt2.setBounds(150,106, 200, 30);
this.add(jl2);
this.add(jt2);
jl3.setBounds(90, 156, 100, 30);
jt3.setBounds(150, 156, 300, 30);
this.add(jl3);
this.add(jt3);
jl4.setBounds(90, 206, 100, 30);
jt4.setBounds(150, 206, 200, 30);
this.add(jl4);
this.add(jt4);
jl5.setBounds(90, 256, 100, 30);
jt5.setBounds(150, 256, 300, 30);
this.add(jl5);
this.add(jt5);
add.setBounds(60, 356, 90, 30);
this.add(add);
find.setBounds(180, 356, 90, 30);
this.add(find);
clear.setBounds(300, 356, 90, 30);
this.add(clear);
quit.setBounds(420, 356, 90, 30);
this.add(quit);
ActionMonitor monitor = new ActionMonitor();
add.addActionListener(monitor);
find.addActionListener(monitor);
clear.addActionListener(monitor);
quit.addActionListener(monitor);
}
class ActionMonitor implements ActionListener{
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
boolean flag = true;
StringBuilder s = new StringBuilder();
if(e.getSource() == add) {
for(int i = 0; i < 5; i++) {
texts[i] = new String();
}
texts[0] = jt1.getText();
texts[1] = jt2.getText();
texts[2] = jt3.getText();
texts[3] = jt4.getText();
texts[4] = jt5.getText();
for(int i = 0; i < 5; i++) {
if(texts[i].equals("") || texts[i] == null) {
flag = false;
break;
}
if(i == 0) {
s.append(texts[i]);
}
else {
s.append(",").append(texts[i]);
}
}
if(flag) {
s.append("\n");
String ss = s.toString();
FileRW.fileWrite(ss);
jt1.setText("");
jt2.setText("");
jt3.setText("");
jt4.setText("");
jt5.setText("");
JOptionPane.showMessageDialog(Main.this, "添加联系人成功");
}
else {
JOptionPane.showMessageDialog(Main.this, "添加失败，请把信息填满");
}
}
else if(e.getSource() == find) {
JFrame frame = new JFrame("查询联系人");
JPanel jPanel = new JPanel();
JPanel jPanel1 = new JPanel();
JLabel jLabel = new JLabel("输入查找人的姓名");
JButton jButton = new JButton("确定");
JTextField jt = new JTextField("", 15);
jPanel.add(jLabel);
jPanel.add(jt);
jButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e2) {
// TODO Auto-generated method stub
String text = jt.getText();
String result = FileRW.fileRead(text);
if( result == null ) {
JOptionPane.showMessageDialog(Main.this, "查找失败，没有找到此人");
}
else {
String[] tempresult = result.split(",");
JOptionPane.showMessageDialog(Main.this, "姓名:" + tempresult[0] + "\n邮政编码:"+ tempresult[1] + "\n通信地址:" + tempresult[2]
+ "\n手机" + tempresult[3] + "\nemail:" + tempresult[4]);
}
}
});
jPanel1.add(jButton);
frame.add(jPanel, BorderLayout.CENTER);
frame.add(jPanel1, BorderLayout.SOUTH);
frame.setBounds(500, 300, 400, 300);
frame.setVisible(true);
}
else if(e.getSource() == clear) {
jt1.setText("");
jt2.setText("");
jt3.setText("");
jt4.setText("");
jt5.setText("");
}
else if(e.getSource() == quit) {
System.exit(0);
}
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Main a = new Main();
}
}